Objective-C Tutorial - Lesson 13: Part 1: Extending Your Program

Objective-C® for Dummies® by Neal Goldstein, Copyright © 2009 by Wiley Publishing, Inc., is the main source of information for this video.

We are now going to extend our Vacation Budget program that we have been working with. I show you exactly how we will go about doing that in the first part of this 3 part lesson.

objective-c tutorial
objective-c tutorials
Objective-C Tutorial

[gopinath]

Dear,
Neal Goldstein, Thanks a lot. I have been watching your tutorial one by one, all are very usefull and you have explained as simple as anyone can understan the concept.
And I like the bible statements also. Go ahead i thank you once again.

[zamoray]

so far has been the most complicated of your videos, with this pointer -> I'll see twenty more times to see if they hold, the effort is appreciated ... :-)

[macandcomputerhelp]

@YourBiggerTube Well this is the last lesson of the procedural part of Objective-C which is just C. Lesson 14 will be introducing objects and classes.

[klooper]

@macandcomputerhelp Note: The materials in this video are taken verbatim from Objective-C For Dummies by Neal Goldstein available at Amazon.com and your local bookstores.

[filipesmg]

It seems that the link for "part 2" is going to the same "part 1"... (thanks for the lessons!)

[malinuxtv]

Try to turn on automatic captions at 5:19. "So we use the death threats operator" xD

[b]

could you like make a video comparing the use of classes and implementations to using a struct?

[b]

i don't really understand the use of & and ->.
is using these structs kind of making a shortened version of a class and implementation files?
so would using the & for vacationBudget be like allocating and initiating it into the Budget "class"
so that it can access its properties exchangeRate, theBudget, and euroTransaction?
And would the -> thing be like the struct version of just using a dot to access properties?
Maybe if you made a tut comparing the use of struct to a class would help a lot!

[b]

why do use the -> and the & sign? this is so confusing to me i don't even understand.
I kind of feel like this whole struct you made is like a small version of a class and implementation? Am i right? and so would the & sign be like a shortened way of allocating and initiating vacation budget into the budget class so that it can access its properties? Well, i say properties but are they even properties? Because its a struct and not a class. because its a struct is that why you have to use -> ?

[technoguy]

All of these 'budgets' are confusing me. We have vacationbudget, eitherbudget, budget, not to mention dollars, spenddollars, chargeeuros. lol

[cipher]

yah its definatly confusing, with this horrible vacation budget example .